Never liked the stuff with the singers indeed but the rest makes it definitely worth while. My personal favorites from this box are Our Collines A Treasure, Update, the duets with Lacy and the session with Braxton ( and just like you, I am no Braxton fan). I paid 28 dollars for mine On jazzmessengers. That’s a steal anyhow.
The Reminiscent Suite is one of my all time favorite jazz records. That session is just stunning...